Liquid-dispensing apparatus



June 12, 1928. v 1,673,247

H. M. KElTH LIQUID DISPENSING APPARATUS Filed June 1925 2 Sheets-Sheet 2 WITNBS: ATTORNEY Patented June 12, 1928.

UNITED STATES PATENT OFFICE.

HENRY M. KEITH, OF WEST FRANKFURT, ILLINOIS, ASSIGNOR TO VACUUM FILLING STAND COMPANY, OF BENTON, ILLINOIS.

LIQUID-DISPENSING APPARATUS.

Application filed June 3, 1925. Serial m. 34,661.

This invention relates to liquid dispensing apparatus especially designed for dispensing gasoline, an object being to provide an apparatus for this purpose in which a manually operated dispensing valve is utilized to close an electric circuit and produce a vacuum within a liquid container and draw a predetermined quantity of liquid therein, together with means to relieve the vacuum and stop the operation of the vacuum producing means when the proper amount of liquid enters the container.

Another object. of the invention is the provision of mechanism for the performance of the above functions, which may be both automatically and manually controlled.

With the above and other objects in view, the invention further includes the following novel features and details of construction, to be hereinafter more fully described, illustrated in the accompanying drawings and pointed out in the appended claim.

In the drawings 'Figure 1 is a vertical sectional view illustrating a liquid dispensing apparatus constructed in accordance with the invention.

Figure 2 is an enlarged fragmentary section of the upper portion of the apparatus, the section being taken substantially at right angles to Figure 1. 1

Figur taken substantially on the line 33 of Fig ure 1.

Fi re 4 is an enlar ed fragmentary section fthe exhaust vali es for the bellows.

Figure 5 is a similar view of the intake ,7

vation showing the controlling switch .and 29 contiguous parts.

Figure 8 is an enlarged fragmentary elevation illustrating the ratchet mechanism of the operating gears.

Referring to the drawings in detail wherein like characters of reference denote corresponding parts, the apparatus which is especially designed for dispensing gasoline e 3 is an enlarged sectional view 12 and through the bottom of the container 13 is a pipe 16 through which gasoline is adapted to be drawn into the container. For this purpose there is mounted above the top of the container adouble acting bellows which includes an upper section 17 and a lower section 18. The be'llows'is designed'to be operated to provide a vacuum within the container 13 and for this purpose is in communication with the container through a pipe 19. One end of this pipe is in communication with each section of the bellows through inlet ports 20 which are controlled by check valves 21. The end of the pipe 19 communicates directly with a common inlet chamber 22 and the latter is in communication with the bellows sections through the ports 20 just mentioned. The opposite end of the pipe 19 is in communication with the container 13 through a port 23 and this port may be closed y a valve 24. The valve 24 is carried by a float 25 which is movablewithin the container 13.

The bellows is provided with an exhaust pipe 26 whose upper end is in communication with a common exhaust chamber 27 and this chamber is in communication with each of the bellows sections through a port 38. These ports are controlled by check valves Mounted for vertical reciprocation in guides 30 positioned at diametrically opposite sides of the container 13, is a. frame 31.

The upper end of this frame is secured to the opposite sides of each of the bellows sections 17 and 18, as shown at 32 and 33 respectively, while the lower end of the frame includes a cross bar 34. A pitman 35 has oneof its ends pivotally secured to the bar 34 while its opposite end is pivotally secured as indicated at 35 to a ratchet wheel 36, the latter being fast upon a shaft. 37

supporting structure 10. Loosely mounted upon the shaft 37 is a worm gear 38 which carries a spring pressed dog 39. This dog is adapted to engage the teeth of the ratchet wheel 30 and lock said ratchet wheel and g ar 38 together. The gear is driven by a worm 40 which is mounted upon the drive phere.

shaft of a motor 41 so, that when the motor is operated the gear 38 will be rotated and as this gear is locked to the ratchet wheel 36 by the dog 39, the frame 31 will be rec procated. The bellows will be operated to produce a vacuum within the container 13 and draw liquid from the tank 17 into said container. Exhaust air from the bellows will pass outward through the pipe 26 Into the storage tank 12, so that the fumes of gasoline will not be forced into the atmos- The motor 41 iscontrolled by a knife switch 42 and connected to the handle of this switch by means of a link 43 is one arm 44 of a bell crank lever, the latter being pivotally mounted as shown-at 45. The other arm 46 of the bell cranklever has connected thereto one end of a rod 42'. This rod passes through suitable guides provided in the supporting structure 10 and has its outer end equipped with a button or head 46.

Extending from the bottom 14 of the controlled by a valve 48 and through which the asoline flows into a hose 49 for convenientfy filling the tanks of automobiles. The valve 48 is provided-with an operating handle 50 which when moved to the closed 0- sition indicated b the dotted lines a in 1gure 6 of the drawings will engage the button or head 46 and move the rod 42 inward and operate the bell crank I lever to close the switch 42. The rod 42 is normally urged in an opposite direction by a spring 51, the

tendency being to open the switch.

The arm 44 of the bell crank has attached thereto one end of a rod 52 and the o posite end of this rod is connected to abe crank lever 53 mounted upon the top 15 of the container. Pivotally "secured to the bell crank lever 53 is one end of a rod 54 while the opposite end of this rod is pivotally secured to .a link 55 which is mounted for pivotal movement upon the topof the container.

Also pivotally mounted .upon the top of the container is a lever 56 whose inner end is located in the path of pivotal movement of the link 55--andwhose outer end carries an operating'cord. 57. The lever 56 has secured thereto a valve 58which controls a vacuum relief port 59; the said valve also being connected to anarm 60. I This arm is '10- .ly ope ends loosely-mounted upon the stem of the p valve 24.. mounted in suitable bearings provided in the 'A concaved deflector plate 62 is mounted within the container above the upper end of the pipe 16.

In the operation of the invention, the handle 50 of the valve 48 is moved to the limit ofits inward movement so as to force the rod 42 inward and close the switch 42. As soon as the switch is closed, the handle 50 is moved outward a suflicient distance to disengage it from the rod 42, but not far enough to open the valve 48, this being a neutral position of the valve as shown'by the dotted lines 6 in Figure 6. A. circuit will then be completed'through the motor 41 and the latter operated to impart a recipline from striking the float 25. As soon as the desired quantity of gasoline entersthe container, the float 25 will be moved upward to open the ort 59 so as to relieve the vacuum within t e container. -When the port 59 is opened, the valve 58 will have moved upward, carrying with it the inner end of the lever 56 so that the latter is disengaged-from the link 55. The handle 50 of the valve 48 is then moved downward to open the valve and permit liquid to flow from the container. As the handle 50 prior to the opening of the valve 48 had occupied a neutral position or a position-away from the button or head 46, upward movement of the inner end of the lever 56 which releases the link'55 would permit the spring 51 to open the switch 42and stop the operation of the motor. In the event the switch did I not open, the float 42 would continue to rise so as to prevent the gasolinefrom assing outward through the port 23 and W0 (1 give the attendant sufficient time to manually stop the operation of the motor by pullingoutward upon the rod 42". As the ratchet wheel is capable of rotation in one direction independent of the gear 38, the bellows may be manually operated if desired.

The inventlon is susceptible of various changes in its form, proportions and minor details of construction and the right is herein reserved to make such changes as properly fall within the scope of the appended claim.

Having described-the invention. what is claimed 1s:

In aliquid. dispensing apparatusgn container, a pipe extending from a source of liquid supfi y into the container, a manualte valve controll (1 outlet for the container, electrically operated means to path of the levento close the switch when produce 'a vacuum within the container to the .valve is moved to closed positio'n and draw liquid within said container, a. switch means operable when a. predetermined quan- 10 for controlling the electrically operated tity of liquid enters the container to release means, a lever for the manually operated the V c m and open the Switch.

valve, a longitudinally movable rod ass'o- 6 In testimony whereofI aflix my signature. ciated with the switch and located in the HENRY M. KEITH 

